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Help repairing Jennings Pump

PostPosted: Sun Oct 14, 2018 6:23 pm
by Jetlag4now
Have a Jennings Victory Chief. Have to manually return handle after each play. Took pump apart. Large rubber gasket around front of the push rod looks good. Small rubber (?) gasket on inside of cap is worn. Several questions. What do I replace the small gasket with & should it be glued to the inside of the cap? Is this an air cylinder only -- no fluid? After cleaning the cylinder should the rod be oiled or greased? Anything else to know? Thanks!

Re: Help repairing Jennings Pump

PostPosted: Mon Oct 15, 2018 1:29 pm
by mechanic
The pump head is not rubber. It is made of leather. Very hard to find a replacement, Usually go buy some leather scraps if you have a leather store or buy a pair of cheap leather gloves a cut them up to the size your original pump leather is. The plunger side should not have anything around it, it should be free moving.

Re: Help repairing Jennings Pump

PostPosted: Mon Oct 15, 2018 2:08 pm
by Jetlag4now
Thanks mechanic. Neophyte here. So I cut the leather to fit snugly around the push rod & glue it to the back cap? The plunger looks good & moves freely. Anything else to know?

Re: Help repairing Jennings Pump

PostPosted: Mon Oct 15, 2018 5:44 pm
by mechanic
No glue !! Just screw the new leather to the rod and ease it into the tube. Clean tube and all other parts first. A little oil on the rod 3 in one or 30 weight just with a cloth or use your finger. That should be about it.

Re: Help repairing Jennings Pump

PostPosted: Tue Oct 16, 2018 7:15 am
by Jetlag4now
Thanks again. Will do & post result. Just 1 more question as the leather was totally deteriorated. Should I cut it the size if a nickel or as large as the cylinder?

Re: Help repairing Jennings Pump

PostPosted: Tue Oct 16, 2018 11:16 am
by mechanic
Take the original leather off and flatten it to get your diameter. It should fit over the brass spokes. then you carefully slide it into the cleaned tube. Suction should be right away. Then reassemble. :D

Re: Help repairing Jennings Pump

PostPosted: Tue Oct 16, 2018 11:23 am
by mrslot1
I sell replacement leathers on ebay
eBay item number: 202455366157

thanks Dave

Re: Help repairing Jennings Pump

PostPosted: Tue Oct 16, 2018 2:34 pm
by Jetlag4now
Thanks to both of you. Just bought 2 just in case. This forum is so great! Nice to know help & support is just a few clicks away.